<template>
  <a-row class="j-select-biz-component-box" type="flex" :gutter="8">
    <a-col class="left" :class="{'full': !buttons}">
      <slot name="left">
        <a-select
          mode="multiple"
          :placeholder="placeholder"
          v-model="selectValue"
          :options="selectOptions"
          allowClear
          :disabled="disabled"
          :open="false"
          style="width: 100%;"
          @click.native="visible=(buttons?visible:true)"
        />
      </slot>
    </a-col>

    <a-col v-if="buttons" class="right">
      <a-button
        type="primary"
        icon="search"
        :disabled="disabled"
        @click="visible=true"
      >{{selectButtonText}}</a-button>
    </a-col>

    <j-select-biz-component-modal
      v-model="selectValue"
      :visible.sync="visible"
      v-bind="modalProps"
      @options="handleOptions"
    />
  </a-row>
</template>

<script>
import JSelectBizComponentModal from "./JSelectBizComponentModal";

export default {
  name: "JSelectBizComponent",
  components: { JSelectBizComponentModal },
  props: {
    value: {
      type: String,
      default: ""
    },
    /** 是否返回 id，默认 false，返回 code */
    returnId: {
      type: Boolean,
      default: false
    },
    placeholder: {
      type: String,
      default: "请选择"
    },
    disabled: {
      type: Boolean,
      default: false
    },
    // 是否支持多选，默认 true
    multiple: {
      type: Boolean,
      default: true
    },
    // 是否显示按钮，默认 true
    buttons: {
      type: Boolean,
      default: true
    },
    // 显示的 Key
    displayKey: {
      type: String,
      default: null
    },
    // 返回的 key
    returnKeys: {
      type: Array,
      default: () => ["id", "id"]
    },
    // 选择按钮文字
    selectButtonText: {
      type: String,
      default: "选择"
    }
  },
  data() {
    return {
      selectValue: [],
      selectOptions: [],
      dataSourceMap: {},
      visible: false
    };
  },
  computed: {
    valueKey() {
      return this.returnId ? this.returnKeys[0] : this.returnKeys[1];
    },
    modalProps() {
      return Object.assign(
        {
          valueKey: this.valueKey,
          multiple: this.multiple,
          returnKeys: this.returnKeys,
          displayKey: this.displayKey || this.valueKey
        },
        this.$attrs
      );
    }
  },
  watch: {
    value: {
      immediate: true,
      handler(val) {

        if (val) {
          this.selectValue = val.split(",");
        } else {
          this.selectValue = [];
        }
      }
    },
    selectValue: {
      deep: true,
      handler(val) {

        let rows = val.map(key => this.dataSourceMap[key]);
        this.$emit("select", rows);
        let data = val.join(",");
        this.$emit("input", data);
        this.$emit("change", data);
      }
    }
  },
  methods: {
    handleOptions(options, dataSourceMap) {

      this.selectOptions = options;
      this.dataSourceMap = dataSourceMap;
    }
  }
};
</script>

<style lang="less" scoped>
.j-select-biz-component-box {
  @width: 82px;

  .left {
    width: calc(100% - @width - 8px);
  }

  .right {
    width: @width;
  }

  .full {
    width: 100%;
  }

  /deep/ .ant-select-search__field {
    display: none !important;
  }
}
</style>